Inventor
OKADA MASAFUMI
JP50 patents
⚠️ This page may combine multiple inventors who share the name “OKADA MASAFUMI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
JAPAN DISPLAY INC
29 patentsUS11294223B2Apr 5, 2022
Lighting device
JAPAN DISPLAY INC7 citations86
US11703710B2Jul 18, 2023
Lighting device of thin, small light distribution angle and less power consumption
JAPAN DISPLAY INC2 citations73
US11537001B2Dec 27, 2022
Lighting device
JAPAN DISPLAY INC4 citations73
US11513279B2Nov 29, 2022
Lighting device
JAPAN DISPLAY INC2 citations73
US11378841B2Jul 5, 2022
Light emitting device and illumination device
JAPAN DISPLAY INC3 citations73
US12331909B2Jun 17, 2025
Lighting device
JAPAN DISPLAY INC0 citations63
US12099273B2Sep 24, 2024
Lighting device with LED facing a disc shaped light guide
JAPAN DISPLAY INC0 citations63
US12085270B2Sep 10, 2024
Illumination apparatus
JAPAN DISPLAY INC0 citations63
US12018831B2Jun 25, 2024
Lighting device
JAPAN DISPLAY INC0 citations63
US12013610B2Jun 18, 2024
Light emitting device and illumination device
JAPAN DISPLAY INC0 citations63
US11852303B2Dec 26, 2023
Lighting device
JAPAN DISPLAY INC0 citations63
US11828454B2Nov 28, 2023
Lighting device
JAPAN DISPLAY INC0 citations63
US11815259B2Nov 14, 2023
Lighting device
JAPAN DISPLAY INC0 citations63
US11789193B2Oct 17, 2023
Lighting device
JAPAN DISPLAY INC0 citations63
US11747670B2Sep 5, 2023
Lighting device
JAPAN DISPLAY INC0 citations63
US11668976B2Jun 6, 2023
Light emitting device and illumination device
JAPAN DISPLAY INC0 citations63
US11655944B2May 23, 2023
Lighting device
JAPAN DISPLAY INC0 citations63
US12282224B2Apr 22, 2025
Backlight and display device
JAPAN DISPLAY INC0 citations62
US11768325B2Sep 26, 2023
Display device, illumination device, and light guiding member
JAPAN DISPLAY INC0 citations62
US11333818B2May 17, 2022
Display device, illumination device, and light guiding member
JAPAN DISPLAY INC0 citations62
US12197075B2Jan 14, 2025
Backlight and liquid crystal display device
JAPAN DISPLAY INC0 citations60
US12320497B2Jun 3, 2025
Lighting device
JAPAN DISPLAY INC0 citations52
US12292593B2May 6, 2025
Lighting device
JAPAN DISPLAY INC0 citations52
US12248167B2Mar 11, 2025
Illumination device
JAPAN DISPLAY INC0 citations52
US12196410B2Jan 14, 2025
Lighting device
JAPAN DISPLAY INC0 citations52
US12038648B2Jul 16, 2024
Illumination device and display device
JAPAN DISPLAY INC0 citations52
US11898709B2Feb 13, 2024
Lighting device
JAPAN DISPLAY INC0 citations52
US11739909B2Aug 29, 2023
Lighting device
JAPAN DISPLAY INC0 citations52
US11442215B2Sep 13, 2022
Light emitting device including a plurality of first and second protrusions
JAPAN DISPLAY INC0 citations52
MINEBEA CO LTD
6 patentsUS6494588B1Dec 17, 2002
Spread illuminating apparatus with an optical path conversion means
MINEBEA CO LTD32 citations92
US6293683B1Sep 25, 2001
Spread illuminating apparatus
MINEBEA CO LTD41 citations92
US6505946B2Jan 14, 2003
Spread illumination apparatus
MINEBEA CO LTD17 citations84
US6375336B1Apr 23, 2002
Spread illumination apparatus
MINEBEA CO LTD9 citations74
US6343867B1Feb 5, 2002
Spread illuminating apparatus
MINEBEA CO LTD13 citations74
US6334691B1Jan 1, 2002
Spread illuminating apparatus
MINEBEA CO LTD10 citations74
KURARAY CO
4 patentsUS4668820AMay 26, 1987
Method of preparing polyprenyl compounds or mixtures thereof
KURARAY CO14 citations73
US4564477AJan 14, 1986
Polyprenyl compounds and method of producing the same
KURARAY CO9 citations73
US5100877AMar 31, 1992
Platinum containing pullulan derivatives and pharmaceutical compositions comprising the same
KURARAY CO13 citations70
US4948784AAug 14, 1990
Platinum containing pullulan derivatives and compositions containing the same
KURARAY CO6 citations59
UNIV TOKYO
3 patentsUS6793669B2Sep 21, 2004
Active forceps
UNIV TOKYO1,065 citations97
US7273488B2Sep 25, 2007
High-rigidity forceps tip assembly for active forceps and active forceps equipped with the same
UNIV TOKYO590 citations96
US6948400B2Sep 27, 2005
Backlash clutch and joint mechanism for a robot comprising the clutch
UNIV TOKYO8 citations74